The M2000C, when put against good and alert Su27, F15 drivers, just don't stand a chance. If the Mirage goes high, he's at a disadvantage because Su27/F15 missiles out range it and will get a first shot advantage, if the M2000C goes low/mountains/notch, it may be able to draw the Su27/F15 to a knife fight, which the Su27/F15 will most probably win. So, the best way to use the Mirage right now would be surprise attacks and such or in a pinpoint ground strike role.